Leveling block



FIG. 1 is a front, bottom, left perspective view of a leveling block showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view; the bottom plan view being a mirror image thereof;

FIG. 4 is a right side elevational view; the left side being a mirror image thereof; and,

FIG. 5 is a back elevational view thereof. 

CLAIM The ornamental design for a leveling block, as shown and described. 